A Brazilian noise case shows how gaps in EIA prediction, fragmented responsibilities, and delayed institutional learning can leave affected communities waiting for action long after impacts emerge.
What happens when an impact is not anticipated in the Environmental Impact Assessment (EIA) and the response has to be built after the effect has persisted for years? This work brings a Brazilian case to the “therapy couch”: for six years, residents living near an operating electrical substation have reported persistent noise impacts. The technical analysis failed to recognize the problem; consequently, its causes, responses, and responsibilities were not addressed. A dedicated acoustic study demanded by affected communities was conducted in the follow-up phase, to characterize the noise and investigate its possible sources, providing new evidence to residents, scientists, the operator, and environmental authorities.
Looking back, the case is not simply a technical failure. Electrical infrastructure involves interconnected components and fragmented institutional responsibilities, making attribution itself part of the problem. While institutions debate responsibilities, residents continue to experience the impact.
This context raises the following question: What can we (EIA practitioners and affected communities) actually learn from the EIA process? The recovery plan begins with understanding EIA capabilities and limitations: the serenity to accept what the EIA process cannot change, the courage to change what can be changed through EIA, and the wisdom to know the difference. The real challenge is to recognize that difference before six more years pass.
Juliano Scarpelin is a Brazilian forest engineer and PhD candidate at USP. He works at Brazil’s federal environmental agency on power line permitting, EIA, and socioeconomic impacts.